ParagonIE_Sodium_Crypto::box_secretkey( string $keypair ): string

Parameters

$keypairstring

Return

string

Uses · 3

• ParagonIE_Sodium_Core_Util::strlen()Safe string length
• RangeException::__construct()
• ParagonIE_Sodium_Core_Util::substr()Safe substring

Used by · 7

• ParagonIE_Sodium_Compat::crypto_box_secretkey()Extract the secret key from a crypto_box keypair.
• ParagonIE_Sodium_Crypto::box()X25519 key exchange followed by XSalsa20Poly1305 symmetric encryption
• ParagonIE_Sodium_Crypto::box_open()Decrypt a message encrypted with box().
• ParagonIE_Sodium_Crypto::box_seal()X25519-XSalsa20-Poly1305 with one ephemeral X25519 keypair.
• ParagonIE_Sodium_Crypto::box_seal_open()Opens a message encrypted via box_seal().
• ParagonIE_Sodium_File::box_decrypt()
• ParagonIE_Sodium_File::box_encrypt()

Source

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606    public static function box_secretkey($keypair)607    {608        if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== 64) {609            throw new RangeException(610                'Must be ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES bytes long.'611            );612        }613        return ParagonIE_Sodium_Core_Util::substr($keypair, 0, 32);614    }

History

Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 6.8.8 tag, from src/wp-includes/sodium_compat/src/Crypto.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

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